~てはいけない JLPT N4 Neutral
〜te wa ikenai
Expresses prohibition; 'must not', 'cannot'.
Everyday prohibition; common in daily instructions and rules (including for children) - less stiff than てはならない.
Formation
Verb-て-form + はいけない
Explanation
The ~てはいけない grammar point is used to express strict prohibition or something that must not be done. It can be translated as 'must not', 'cannot', or 'should not' in English. It is formed by adding て-form of a verb followed by はいけない.
Example sentences
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You must not smoke in the park.
Kouen de tabako o sutte wa ikenai.
-
You cannot take pictures here.
Koko de shashin o totte wa ikenai.
-
You must not speak loudly in the library.
Toshokan de ookina koe o dashite wa ikenai.
バスの中で立っている人に席を譲ってはいけない。(Note: Unusual in real life, but grammatically correct.)
You should not give up your seat to someone standing on the bus. (Note: Odd in actual social context, but valid grammar.)
Basu no naka de tatteiru hito ni seki o yuzutte wa ikenai.
Prohibition (Must Not / Should Not)
- ~ものではない JLPT N2
- ~てはならない JLPT N2
- ~べきではない JLPT N2
- Verbる べからざる Noun JLPT N1